Thought you might be interested to know there is a new biography of Sean Bean (Boromir) available. The unofficial biography has been written by Laura Jackson, who has also written biographies of Queen, Ewan McGregor, and other celebrities. There apparently isn’t too much info about LOTR since the bio focuses on Sean’s career up to this point, but LOTR is mentioned. You can get more info here at The Compleat Sean Bean
Piatkus Books, the publisher in the UK, has also set up a page.